Set connection pool and overflow limits when using Node.js
Stay organized with collections
Save and categorize content based on your preferences.
Configure the connection pool size and overflow when connecting to Cloud SQL for MySQL using the Node.js npm mysql module.
Explore further
For detailed documentation that includes this code sample, see the following:
Code sample
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],[],[],[],null,["# Set connection pool and overflow limits when using Node.js\n\nConfigure the connection pool size and overflow when connecting to Cloud SQL for MySQL using the Node.js npm mysql module.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Manage database connections](/sql/docs/mysql/manage-connections)\n\nCode sample\n-----------\n\n### Node.js\n\n\nTo authenticate to Cloud SQL for MySQL, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n // 'connectionLimit' is the maximum number of connections the pool is allowed\n // to keep at once.\n connectionLimit: 5,\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=cloud_sql_mysql)."]]